|
Posted by Don Ocean on July 6, 2008, 10:23 pm
Steve wrote:
>> M100C wrote:
>>> All,
>>> My home has a high efficiency forced air furnace, with combusion air
>>> and exhaust through two PVC pipes (about 15' runs).
>>>
>>> While at the heated pool in our neighborhood, I noted that the pool
>>> heater was ducted through what appeared to be a single pipe (pipe in a
>>> pipe), with the exhaust through the inner pipe and the intake through
>>> the outer pipe.
>>>
>>> If I understood the arrangement, I could see a few advantages:
>>>
>>> 1) The inner exhaust pipe would have counterflow to the intake, and
>>> should heat the intake air somewhat.
>>> 2) The inner pipe had a screen over it, to prevent entrance of
>>> critters. I put 1/2" hardware cloth over my intake pipe to prevent
>>> the entrance of barn swallows, but it capped over with snow in the
>>> winter. This arrangement looked to be a little more robust.
>>>
>>> Is this sort of arrangement available for a forced air furnace? What
>>> is this called?
>>>
>>> Thanks,
>>> Chris
>> Concentric. Call your service people for an install pricing.
>
> That might actually cost money.... If he had used a a real pro to inatall
> his furnace, instead of the lowest bidder, he would already *HAVE* one.
>
Benefits of hiring the lowest bidder.
>
| 
Yahoo! 
Google 
Windows Live 
del.icio.us 
digg 
Netscape 
XML Sitemap